many were hoping for a glimpse of the northern lights over the weekend. And some got one. A spectacular one. Tonight, the science behind what creates it all. And the aurora chasers who told us they were up well into the night. Scientists say it all begins with this, a solar flare. Charged particles released by the sun, sent hurtling through space. And this is what they look like when they reach our atmosphere. The dazzling displays of light, known as the aurora borealis, or northern lights. This video, one of the best ever captured over north america. The crew onboard the international space station, witnessing this. About 1,000 miles west of california. But tonight, the newest spectacular views. This image from norway, the green lighting up the blue sky there. The stars behind the glow. From canada, this time lapse from yukon. Scientists say there's a reason the most spectacular are seen in the north, because they are closer to the magnetic poles. And from alaska this evening, the town called north pole, an aurora chaser telling us, she captured these stills at 1:00 in the morning, lighting up the sky of the north pole firehouse. And from sweden, this. Using a fisheye lens, a time lapse made up of 2,400 images. Capturing the entire sky in a single exposure. And the photographer snapping an image of himself, too.

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